– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sat 25 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sat 25 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sat 25 Jul Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 21°C on Mon afternoon, min 14°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 22°C on Thu afternoon, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | |  | | | | |  | |  | | | |
rain shwrs | rain shwrs | light rain | light rain | light rain | rain shwrs | rain shwrs | clear | rain shwrs | rain shwrs | rain shwrs | rain shwrs | cloudy | clear | clear | clear | clear | |
Cloud base (m) | 1900 | 1700 | 600 | 850 | 2400 | 2200 | 2100 | 1900 | 900 | 750 | 650 | 6050 | 9200 | 8850 | |||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.6 | 0.3 | 1 | 0.5 | 1.9 | 0.2 | 0.2 | — | 0.1 | 0.9 | 1.8 | 0.2 | — | — | — | — | — |
max °C | 18 | 15 | 14 | 16 | 16 | 18 | 21 | 19 | 18 | 18 | 16 | 16 | 19 | 16 | 19 | 22 | 18 |
min °C | 16 | 14 | 14 | 15 | 14 | 15 | 19 | 14 | 15 | 16 | 12 | 13 | 18 | 13 | 16 | 22 | 15 |
chill °C | 16 | 14 | 14 | 15 | 14 | 15 | 19 | 14 | 15 | 16 | 12 | 13 | 18 | 13 | 16 | 22 | 15 |
Freezing level m | 2950 | 3200 | 3250 | 3000 | 3100 | 3150 | 3450 | 3450 | 3150 | 3100 | 3250 | 3400 | 3700 | 3950 | 3950 | 4100 | 4100 |
 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — |
 | — | 8:54 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 5mm), mostly falling on Sun night. Warm (max 21°C on Mon afternoon, min 14°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 3mm), mostly falling on Tue night. Warm (max 22°C on Thu afternoon, min 12°C on Tue night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport |  | ||||
BUOY-46118 | |||||
SHIP6026 | |||||
SHIP7118 | |||||
SHIP8167 | |||||
Abbotsford Airport |  |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.